Applications of a chemically adsorbed monomolecular layer having a fluorocarbon chain as an anti-contamination film

Monomolecular layers having a fluorocarbon chain were developed and made su itable for practical use as anti-contamination films for glasses, such as f ront door window glass plates of automobiles and window glass plates of ele ctric ovens or microwave ovens, and also for stainless steel applications, such as covers of electric rice cookers, by using a chemical adsorption tec hnique for the first time in the world. The layer was anchored to the subst rate surface through covalent bonds. Thus the layer did not peel off and wa s durable against rubbing and scratching. As the film thickness was from ab out 1 to 2nm, the layer was also optically transparent and the luster and c olor tone of the substrates was maintained. The lowest surface tension obta ined was 8.2 mN/m, which is about a half that of Teflon. Although thermo-du rability was a little low in comparison with that of Teflon, the production cost was lower. Thus this anti-contamination film should be very useful in the field of anti-contamination surface treatment.